Diurnal 220675 219371020 2008-06-14T22:21:49Z Jopparn 6250544 {{wiktionarypar|diurnal}} '''Diurnal''' ("[[day|daily]]") may refer to: * [[Diurnality]], the behavior of an animal that is active in the daytime * Actions which are completed in 24 hours and are repeated every 24 hours, e.g. the sun reaching its zenith. * [[Diurnal motion]], the apparent motion of stars around the Earth, caused by the Earth's rotation around its axis. More generally it means ''repeating daily'' as in e.g. ''diurnal effect'' * [[Diurnal phase shift]], the phase shift of electromagnetic signals associated with daily changes in the ionosphere *[[Diurnal temperature variation]], the daily temperature shift that occurs from [[daytime]] to [[night]] In '''astrology''': * Diurnal chart, a chart for a given date, based on the [[natal chart]] * Diurnal planet, a planet in a [[astrology of sect|sect]] for which the Sun is above the horizon * [[Diurnal sign]], a sign in the zodiac whose natural positions are on the southern hemisphere of the horoscope * [[Diurnal arc]], the time, as expressed in right ascension, it takes a planet, point, or degree to move from its rising point to its setting point {{disambig}} [[es:Diurnal]] [[fr:Diurne]]